Boiler.



RJ. PEREZ.

BOILER`- APPLIUATION FILED FEB', 27, 1913, l t v.

Patented Mar. 10, 1914.,-

341.. 043 3 7 j 6 u 0 U13 4 SEEBTSSHEBT 1.

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@aai/; I

F, J. FENZ.

I Buma.

APPLIOATION FILED P23127, 1913. l 1 089,9 l 8, Patented Mar. 10, 1914.

4 SHEETS-SHEET Z.

WKTNESSEF @Ffa/f mi? F, J. FRENZ. Bouma.

APPLICATION FILED FEB. 27, 1913. v

Patented Mar. 10, 191% 4 SHEETS-SHEET 3y E'. J. 1.-"3'517121.v Boum.

APPLICATION FILED 1213.27, 1913.

Patented Mai. 3.6, 1914,

4 MEETS-SHEET 4.

WITNESSES a the in"erior I trated in Fi?.

culating tubes `7, the

of the heads 10 for the entrance of a suitable cleaning tool,

caps or doors'35 of any suitable construction. By this means access may be had to for inspection at any time.

While prefer to use the combined preliminary and main furnace charnbers D `and E, as above described, the successful opera-y tion ci the invention is notn'ecessarily deio 'pendent on such constructiomasthe boiler is well adapted to use withthe ordinary single furnace oiheatiig chamber, as illusll, e en in 'u on the/ ualit or kind of P g p q y tion, as shown in said figure, is otherwise' substanti ally the same as that just described, the several parts being indicated by corresponding letters and nuiherals the first baiiing-header 10 above main furnace chamber E being -continuously flat like the other headers l0 and-.without the depending rear portion i0', the charging openings and doors 16, l?, being provided with the\ ash doors, grate bars, and other construction, as shown. There itis desired to utilize gaseous fuel, the grate bars may be eliminated and a suitable fuel gas `burner 36 located at a suitable distance below the lowermost series of cirvertical space below such series of tubes being very considerably diminished, as clearly shown in Fig. 5. Such construction` avoids the necessity of ash doors 'or ash receiving space, the circulation of the gases. in combustion following the same course as that provided for in the use of solid yfuel. .In the construction above described, the entire interior of the boiler is filled with circulating water. Where it is desired to' utilize the construction for producing steam, l 4employ a steax drum 37 mounted in the upper portion of the 'boiler structure and supported upon` and secured to the end walls andthe inner edges of the side walls; For

such purpose, the upper end portionsothe end walls, land likewise tiene ot the side walls, are deliected inwardly, as indicated at 38, the water cavities a of the side walls being disposed inwardly toward ,the sides of the drum 37, just below its center, and these inner abutting ends of the side wall terminals are connected with. the shell of the drum by Vcirculating nipples the upper' end portions o and B are provided with semi cylindrical supporting depressions adapted to receive the end portions of the drum 37, the water circulation cavities-ja', b,

- beingvplace'd in circulating connection with the end portions of the drum by means of similar j nipples 40 extending-through the druin, Likewise,v the endn'alls A of? shell of the endwalls andthe shellof' the the openings' being closed by el bemg used.- The eostrucf the upper Side por-- 39 at each side, effectingf communication between the water cavities,

of the sidewalls and the interior steam?, I

f other endlwall', an outlet for theproducts of chamber at the lowerl boiler, an intervening packing 41 of asbestos provided. .The cavities a. and ofthe end walls arealso placed in communication with the `cavities C of the side walls b means of connecting nipples 42, provi ing for ample circulation. An outlet conduit 43 is connected with the drum 37 at any suitable point, as upwardly from the top thereof, for the purpose of making steam connection therewith.

` It will be observed from the constructions shown and described that the entire boiler installation is of metal and is self-contained within the surrounding hollow circulating walls, in combination with the circulating tubes, headers, bridge wall, etc.

l avoid thenecessity of any brick work whatever, and the boiler is thus capable of long continued use without deterioration or necessityA of repair. 'lt is capable of demaintainlng a high or any desired degree of temperature in the water, the boiler is easily regulated and ',controlled, and is especially ('dapted to be used infconnection with the installation of hot water heating systems.

lt will be understood that the advantages of the invention may be embodied in boilers of various capacities or sizes or that the invention may be changed in detail features of construction, but that all such 'changes are-robe considered as within the; scope o the following claims. What l claim is:

1. In a boiler of the'class combination of a supporting described, the

base, hollowv cast side and end walls having hollow nipple connections, inclined water circulation tubes connecting thehollow front and bac walls, water. connections :tor the frontend back walls, a plurality of hollow cast'xnetal headers arranged in alinement with the tially as set forth. '2.' In a boiler of the class described, the

said walls at the corners, a water supply connected tothe base of one end wa1l,.a water exhaust connected to the top of the combustion, a furnace most inner portion of the boiler, a plurality of alternately arranged hollow cast metal circulating baffling each end with' the end walls by tubes, and a series of inclinedl water circulation' tubes connecting the front and back walls, substantially as set forth.

tubes at alternating positions providirue;l

or other suitable material beinp preferably velopingnthe full efficiency of the fuel and of combination of hollow cast metal end walls and side walls, hollow nipples connecting headers connected at enst metal side and enel. Wells "elieieon in Closing e furnace chamber nml having; tbeii ,end portions connected "oy cireulneing nipples, inclined Wziei' cieulation' tubes con meeting opposite wills7 e plurality of liollow east meiol headers rangefl el, varying alternating positions perelleling Elie Wale? circulation selles and eomniunioating et each enel with said opposite Walls, elle loweimosl; of said headers having e reni' doWnwm-ei extension, and hollow Water: circulation gratebels connecting seid exension with one of alle endy Wells, substantially as see forti 4c. In e boiler, e base structure, hollow east metal side, front and beek Walls thereon having their enel portions conneotefl o water circulation, :i series oi" grate bers ex tending between the side Welle enfle hollow bridge Wall in rem.' thereof eonneeing the side wells and providing with the grate. leere e furnace' chamber, inclined Water @ironial tion tubes conneeting elle ion'i; end beek Walls, e plurality of hollow alternating east metzil headers extei'idingg between the side walls and communicating al. eeeli enel. with the end Walls, the lowermost of said headers having e rear clownweifd extension, and a, series of nollow grate bars connecting Seial extension with lie from Well and arranged @comme over tlierstimmed bers, snliele as sei; forth In a boiler of the Class described, teng'nlnr @est metal side and enfl Wells foming the main ironie oi' the Fl-i'iiet'zure, e2 li having integljal inner and outerside owl endniost well sections inc-losing e hollow eiroula'ingz interior, hollen7 Water circulating telles lixeflly connected with the -inner wall sections, the outer Wall seetions having reg-- istering openings end closing caps therefor, tlie 'upper portions ol seidend walls lowing ,their iop portions formed to provide con drinn by similar nipples et each side thereof,

a steam eonneemon for seid drum, and a if water inlet connection for one of said end 'j wells, substantially as set for-th.

ln testimony whereof l. hereunto eflx my signatnrerin the pljesenee of two witnesses.

, FREDERICK J'. FREN'Z.

Witnesses H. HECK, W4. JA. Hicomriin 

